8 things you need to know about Anant Kumar Hegde who wants to wipe out Islam

London, May 20: The current physical distancing guidelines of 6 feet may be insufficient to prevent COVID-19 transmission, according to a study which says a mild cough in low wind speeds can propel saliva droplets by as much as 18 feet.

Researchers, including those from the University of Nicosia in Cyprus, said a good baseline for studying the airborne transmission of viruses, like the one behind the COVID-19 pandemic, is a deeper understanding of how particles travel through the air when people cough.

In the study, published in the journal Physics of Fluids, they said even with a slight breeze of about four kilometres per hour (kph), saliva travels 18 feet in 5 seconds.

"The droplet cloud will affect both adults and children of different heights," said study co-author Dimitris Drikakis from the University of Nicosia.

According to the scientists, shorter adults and children could be at higher risk if they are located within the trajectory of the saliva droplets.

They said saliva is a complex fluid, which travels suspended in a bulk of surrounding air released by a cough, adding that many factors affect how saliva droplets travel in the air.

These factors, the study noted, include the size and number of droplets, how they interact with one another and the surrounding air as they disperse and evaporate, how heat and mass are transferred, and the humidity and temperature of the surrounding air.

In the study, the scientists created a computer simulation to examine the state of every saliva droplet moving through the air in front of a coughing person.

The model considered the effects of humidity, dispersion force, interactions of molecules of saliva and air, and how the droplets change from liquid to vapour and evaporate, along with a grid representing the space in front of a coughing person.

Each grid, the scientists said, holds information about variables like pressure, fluid velocity, temperature, droplet mass, and droplet position.

The study analysed the fates of nearly 1,008 simulated saliva droplets, and solved as many as 3.7 million equations.

"The purpose of the mathematical modelling and simulation is to take into account all the real coupling or interaction mechanisms that may take place between the main bulk fluid flow and the saliva droplets, and between the saliva droplets themselves," explained Talib Dbouk, another co-author of the study.

However, the researchers added that further studies are needed to determine the effect of ground surface temperature on the behaviour of saliva in air.

They also believe that indoor environments, especially ones with air conditioning, may significantly affect the particle movement through air.

This work is important since it concerns safety distance guidelines, and advances the understanding of the transmission of airborne diseases, Drikakis said.

Bengaluru, May 20: Ride-sharing company Ola Cabs said on Wednesday it will lay off 1,400 of its employees due to business uncertainty caused by the coronavirus pandemic while the revenue has come down by 95 per cent in the past two months.

"The COVID crisis continues to unfold all around us causing unprecedented economic and social destruction. It has also become evident that the coronavirus will not be eliminated any time soon," wrote co-founder and CEO Bhavish Aggarwal to all Ola employees.

"In these circumstances, today I write to all of you with the toughest decision I have ever taken -- the need to downsize our organisation and let go of 1,400 of our valued employees," he said.

Aggarwal said the fallout of virus has been very tough for the cab aggregating industry in particular. "The company's revenue has come down by 95 per cent over the past two months," he said.

Initially, he said, the company hoped it would be a short-lived crisis and that its impact would be temporary. "But unfortunately, it is not been a short crisis. And the prognosis ahead for our business is very unclear and uncertain. It is going to take a long time for people to go out and about like before."
With more companies preferring to have a large number of employees work from home, air travel limited to essential trips and vacations being put off for better times, the impact of this crisis is definitely going to be long-drawn, said Aggarwal.

"The world is not going to revert to the pre-COVID era anytime soon. Social distancing, anxiety and an abundance of caution will be the operating principles for everyone," he told employees.

Aggarwal said the crisis necessitates the need to conserve cash aggressively so that Ola is able to invest in opportunities in the future, adding the downsizing exercise has been a very tough and sad decision for the management team to make.

"While we restructure our organisation to the new realities of our business, we are also going to recommit ourselves to strengthening our operational excellence and leverage a lot more technology to improve efficiencies and reduce cost across all parts of our business," he said.

In a development which highlights the diversity in the United Kingdom’s legal system, a 40-year-old Muslim woman has become the first hijab-wearing judge in the country.

Raffia Arshad, a barrister, was appointed a deputy district judge on the Midlands circuit last week after 17-year career in law.  

She said her promotion was great news for diversity in the world’s most respected legal system. She hopes to be an inspiration to young Muslims.

Ms Arshad, who grew up in Yorkshire, north England, has wanted to work in law since she was 11.

Ms Arshad said the judicial office was looking to promote diversity, but when they appointed her they did not know that she wore the hijab.

‘It’s definitely bigger than me,” she told Metro newspaper. "I know this is not about me.

"It’s important for all women, not just Muslim women, but it is particularly important for Muslim women."

Ms Arshad, a mother of three, has been practising private law dealing with children, forced marriage, female genital mutilation and other cases involving Islamic law for the past 17 years.

She was the first in her family to go to university and has also written a leading text on Islamic family law.

Although the promotion by the Lord Chief Justice was welcome news for her, Ms Arshad said the happiness from other people sharing the news was “far greater”.

“I’ve had so many emails from people, men and women," she said.

"It’s the ones from women that stand out, saying that they wear a hijab and thought they wouldn’t even be able to become a barrister, let alone a judge."

Ms Arshad is regularly the subject of discrimination in the courtroom because of her choice to wear the hijab.

She is sometimes mistaken for a court worker or a client.

Ms Arshad said that recently she was asked by an usher whether she was a client, an interpreter, and even if she were on work experience.

“I have nothing against the usher who said that but it reflects that as a society, even for somebody who works in the courts, there is still this prejudicial view that professionals at the top end don’t look like me,” she said.

A family member once advised her to not wear a hijab at an interview for a scholarship at the Inns of Court School of Law in 2001, warning that it would affect her chances of landing the role.

“I decided that I was going to wear my headscarf because for me it’s so important to accept the person for who they are," Ms Arshad said.

"And if I had to become a different person to pursue my profession, it’s not something I wanted.”

The joint heads of St Mary’s Family Law Chambers said they were “delighted” to hear the news of her appointment.

“Raffia has led the way for Muslim women to succeed in the law and at the bar, and has worked tirelessly to promote equality and diversity in the profession,” Vickie Hodges and Judy Claxton said.

“It is an appointment richly deserved and entirely on merit, and all at St Mary’s are proud of her and wish her every success.”